function make_toggle(element) {
  if (document.getElementById(element).style.display!='none'){
  $('.submenu').slideUp('slow');
  }
    
  else{
    $('.submenu').slideUp('slow');
    $('#' + element).slideDown('slow');
  }
}

function visible_form(element) {
  if (document.getElementById(element).style.display!='none'){
  $('.firemne-udaje').slideUp('slow');
  }
    
  else{
    $('.firemne-udaje').slideUp('slow');
    $('#' + element).slideDown('slow');
  }
}